1
Roger H Tu, Edwin Wang: Multi-layered poly(tetrafluoroethylene)/elastomer materials useful for in vivo implantation. Baxter International, Michael C Schiffer, Richard L Myers, W Dennis Drehkoff, March 28, 1989: US04816339 (345 worldwide citation)

Biologically compatible materials capable of being formed into implants, comprising layers of poly(tetrafluoroethylene) and mixtures of poly(tetrafluoroethylene) and elastomer, having excellent compliance, strength, elasticity and suturability are disclosed. The materials are preferably prepared as ...


2
Roger Tu, Edwin Wang: Multi-layered poly(tetrafluoroethylene)/elastomer materials useful for in vivo implantation. Baxter International, Michael C Schiffer, W Dennis Drehkoff, October 29, 1991: US05061276 (133 worldwide citation)

A vascular graft having a composite structure prepared by wrapping about the external surface of a tube having one or more layers of polytetrafluoroethylene or a polytetrafluoroethylene-elastomeric polymer blend, either alone or in combination, an elastic fiber, while maintaining the fiber under ten ...


3
Dilip R Sanvordeker, James G Cooney, Ronald C Wester: Transdermal nitroglycerin pad. G D Searle & Co, W Dennis Drehkoff, James G Passe, June 22, 1982: US04336243 (52 worldwide citation)

The present invention provides a trans-dermal delivery pad for nitroglycerin administration, specifically a microsealed, trans-dermal nitroglycerin pad having a backing which is impervious to nitroglycerin absorption and transport and a silicon matrix affixed thereto, said silicone polymer matrix be ...


4
Timothy Allen Miller, Carlo J Hansen: Simulated bone. Ralston Purina Company, W Dennis Drehkoff, June 28, 1977: US04032665 (38 worldwide citation)

A simulated bone of improved hardness and color is provided having as a structural matrix a white, unpuffed farinaceous mixture, in which the fat content of the matrix is controlled to below about 7% by weight, and the moisture content to between about 5 and 12% by weight thereby imparting a shear v ...


5
Shaun S Wang: Computer system and method for pricing financial and insurance risks with historically-known or computer-generated probability distributions. Vedder Price Kaufmann & Kammholz P C, W Dennis Drehkoff, January 1, 2008: US07315842 (33 worldwide citation)

The invention is a computer-implemented system and method, and a computer-readable medium for use with computer means, that enables portfolio managers to price, on a risk-adjusted basis, any traded or under written risk vehicle in finance and insurance that has a historically-known or computer-gener ...


6
Leroy V Skoch, Bud G Harmon, Charles W Dickerson: Animal feed block containing ferrous sulfate and magnesium oxide. Ralston Purina Company, W Dennis Drehkoff, October 16, 1979: US04171386 (31 worldwide citation)

An animal feed supplement in a solid, weather resistant block form and method of making is disclosed. The molasses based feed supplement block, intended for consumption primarily by ruminant animals, although not limited thereto, contains ferrous sulfate as a blocking agent. The feed supplement also ...


7
Leroy V Skoch, Dean E Hodge: Animal feed block containing magnesium oxide. Ralston Purina Company, W Dennis Drehkoff, October 16, 1979: US04171385 (30 worldwide citation)

An animal feed supplement in a solid, weather resistant block form and method of making is disclosed. The molasses based feed supplement block, intended for consumption primarily by ruminant animals, although not limited thereto, contains magnesium oxide as a blocking agent. The feed supplement also ...


8
Leroy V Skoch, Bud G Harmon, Charles W Dickerson, Nelson S Chou: Animal feed block containing ferrous sulfate and finely ground magnesium oxide. Ralson Purina Company, Virgil B Hill, W Dennis Drehkoff, May 5, 1981: US04265916 (28 worldwide citation)

An animal feed supplement in a solid, weather resistant block form and method of making is disclosed. The molasses based feed supplement block, intended for consumption primarily by ruminant animals, although not limited thereto, contains ferrous sulfate as a blocking agent. The feed supplement also ...


9
Robert H Mazur: N-Adamantane-substituted tetrapeptide amides. G D Searle & Co, Mary Jo Kanady, W Dennis Drehkoff, June 16, 1981: US04273704 (27 worldwide citation)

N-Adamantane-substituted tetrapeptide amides and the pharmacologically acceptable salts thereof are disclosed herein. These compounds are analogs of enkephalin wherein the methionine or leucine of position 5 has been substituted by an adamantyl amide and the glycine of position 2 has been substitute ...


10
Leroy V Skoch, Raymond F Sewell: Dry mink feed. Ralston Purina Company, W Dennis Drehkoff, March 6, 1979: US04143169 (22 worldwide citation)

A method of producing a dry, extruded feed for carnivorous animals containing a large amount of proteinaceous materials, a minor amount of farinaceous materials and up to about 24% fat by weight is disclosed. More specifically, a hard dry high fat feed having excellent particle integrity is extruded ...